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Contextual Multi-Device Delivery

Contextual Multi-Device Delivery. Venu Vasudevan Motorola Labs venuv@labs.mot.com. Single-Device Contextual Delivery : Benefits and Limitations. Benefits: Device-specific downscaling of content Select device-specific content version Device-specific content transcoding

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Contextual Multi-Device Delivery

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  1. Contextual Multi-Device Delivery Venu Vasudevan Motorola Labs venuv@labs.mot.com

  2. Single-Device Contextual Delivery : Benefits and Limitations • Benefits: Device-specific downscaling of content • Select device-specific content version • Device-specific content transcoding • Limitations: loss of “wow” factor • Even the cleverest miniaturization makes the service less compelling • The multi-device delivery option • User travels thru computing islands with multiple devices • Users have multi-device ‘toolbelts’ • Service architecture treats computing island as single logical device

  3. Components of multi-device orchestration • axioms • All-IP network, multiple access networks • Peer-to-peer (not c/s), not necessarily HTTP • Proxy (“edge box”) in the path • Devices as containers of downloadable plug-ins • aggregate capabilities of a device neighborhood • inherent capabilities (model#, o/s) • resource availability (e.g. sound card) • environmental device attributes (e.g. device orientation) • user and content provider orchestration preferences • Content provider - content re-targeting hints • User preferences - demultiplexing vs. transcoding, choice of access network • allowable device plug-ins

  4. CC/PP based Personal Mobility Solution Internet RTP multimedia Stream (video+audio) Transcoder Cloud Service Orchestrator Neighborhood Topology User Preferences Web Services Collage Composer Operator Discovery User Activation CC/PP (over SIP) – neighborhood capabilities and availability SIPLets- dynamic device personalities Office Parking Lot Car

  5. CC/PP Perspective • CC/PP model needs to include “pluggable” proxies • Current proxies assume fixed operator set • Express capabilities of groups of devices • Support delivery to a user, not a device • Metadata with shorter lifespans • Resource availability (e.g. availability of audio card) can change rapidly • Expressing non-conventional device metadata • e.g. device orientation • Support model of devices as containers

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